[Freetype] More FreeType PostScript problems...

[Pedriana, Paul]

I have a PostScript font generated by FontLab which looks fine drawn by

Windows, but yields screwy values with FreeType 2.0. I call the code below

and get (overly small) results like this:

    yMax      =  7

    yMin      = -3

    height    = 13

    ascender  =  7

    descender = -3

 

And then the font bitmaps end up being much larger than the above and

the text overwrites itself vertically when drawn in a multi-line text display.

This same font generated as TrueType has no problems. Am I missing

something or is Freetype 2.0 confused about how to calculate PostScript

bbox data?

 

Here is the code I execute:  

   FT_Set_Pixel_Sizes(pFreeTypeData->face, 34, 34);
 
   const int yMaxEM               = pFreeTypeData->face->bbox.yMax;
    const int yMaxFixedPoint26_6   = FT_MulFix(yMaxEM, pFreeTypeData->face->size->metrics.y_scale);
    const int yMax                 = yMaxFixedPoint26_6 / 64;
 
   const int yMinEM               = pFreeTypeData->face->bbox.yMin;
   const int yMinFixedPoint26_6   = FT_MulFix(yMinEM, pFreeTypeData->face->size->metrics.y_scale);
   const int yMin                 = yMinFixedPoint26_6 / 64;
 
   const int heightEM             = pFreeTypeData->face->height;
   const int heightFixedPoint26_6 = FT_MulFix(heightEM, pFreeTypeData->face->size->metrics.y_scale);
   const int height               = heightFixedPoint26_6/64;
 
   const int ascenderEM           = pFreeTypeData->face->ascender;
   const int ascender26_6         = FT_MulFix(ascenderEM, pFreeTypeData->face->size->metrics.y_scale);
   const int ascender             = ascender26_6/64;
 
   const int descenderEM          = pFreeTypeData->face->descender;
   const int descender26_6        = FT_MulFix(descenderEM, pFreeTypeData->face->size->metrics.y_scale);
   const int descender            = descender26_6/64;

Paul